Vitus 24+ Kids BikeThe Vitus Kids 24+ is a versatile and stable off-road explorer trail bike. An agile and capable trail-warrior, this confidence-inspiring hardtail is ideal for overcoming challenging routes in the forest and for a fun riding experience anywhere. Lightweight, Strong and Stable Hardtail BikeFeaturing a lightweight and robust 6061 T-6 aluminium frame and fork, super stable geometry, and 2.6" plus sized tyres giving the bike ample suspension without the need for a heavy suspension fork. The 24+ is the ideal package for any wannabe trail rider. Shimano 7-Speed Drivetrain and Tektro Hydraulic Disc BrakesFitted with a Shimano Altus 7 Speed drivetrain with Rapidfire shifter and Tektro M276 hydraulic disc brakes, this bike has all the capabilities of tacking whatever the rider can throw at it. The 24+ also features an aluminium bar, stem and seatpost kit, helping to keep the overall weight of the bike as low as possible. Plus Sized Tyres for More Grip and ControlThe Vee Crown Gem 24" x 2.6" tyres are a fantastic way to experience trail riding for the first time. Weighing significantly less than suspension forks, and the ability to adjust the ride with pressure changes, they also add grip and stability to the bike making the riding experience more enjoyable. Please Note: Due to ongoing issues in the global bike supply chain, manufacturers may substitute certain component items due to availability. In this situation, they will be replaced with the same quality or better performing parts.Features: Frame: 6061-t6 Aluminium, IS Disc Mount, Threaded Bb, QR Fork: Aluminium, IS Disc Mount, QR Headset: VP 28.6 / 44 / 30, 10mm Aluminium Cover Handlebar: Vitus 6061 Aluminium Kids 31.8mm Bar Bore, 600mm Width, 15mm Rise, 9 Degree Backsweep, Safety End Caps Stem: Vitus 6061 Aluminium Kids Length 50mm Grip(Tape): Vitus Kids TPR Rubber Front Rim: Weinmann DM30 24", 28 Hole Rear Rim: Weinmann DM30 24", 28 Hole Front Hub: Joytech D761DSE, 28 Hole, 100mm QR, 6-bolt Rear Hub: Joytech D142TSE, 28 Hole, 135mm QR, 7-Speed, 6-bolt Front Tyre: Vee Crown Gem 24" x 2.6" (may be suplied with either skin wall or all black tyres) Rear Tyre: Vee Crown Gem 24" x 2.6" (may be suplied with either skin wall or all black tyres) Spoke: Steel 12mm Nipple Chain: KMC Z7 Crankset: Samox 140mm Crank Arm, Twin Chainguard, Reduced Q Factor, 32t, 3/32" x 1/2" Bottom Bracket: Square Taper Sealed Cartridge Bearings, English Thread, BSA, 68mm Front Brake Set: Tektro HD-M276 Hydraulic Disc Adjustable Reach Rear Brake Set: Tektro HD-M276 Hydraulic Disc Adjustable Reach Rotors: Tektro TR-160Front 160mm, Rear 160mm Rear Derailleur: Shimano Altus 7-Speed SL-M310-S, 7/8-Speed Rear Shifter: Shiamano Altus Rapidfire 7-Speed SL-M315-7R, 7-Speed, Rapidfire Plus, Optical Gear Window Freewheel: Shimano 12-32tHG-200, 7-Speed Saddle: Vitus Kids Steel Rail Seat Post: Vitus 6061 Aluminium Kids 27.2mm x 250mm Weight: 11.16 kgBuy Vitus Bikes from Chain Reaction Cycles, the World's Largest Online Bike Store.
◌CeramicSpeed OSPW System Shimano R9200-R8100The OSPW System Shimano R9200-R8100 from CeramicSpeed is designed and engineered to enhance performance for the Shimano 9200 and R8100 series rear derailleurs. It features an integrated stop tower for simple installation and durability, and it significantly enhances gear shifting performance.The CeramicSpeed Oversized Pulley Wheels System has been proven to be the fastest pulley system in the world. This OSPW System has hand built CeramicSpeed Bearings installed in each pulley and comes with a 4-year warranty as standard and a lifetime warranty when choosing coated bearings. CeramicSpeed OSPW Systems are an industry-leading product, chosen by World Champions and top athletes around the world. Featuring a 13-tooth upper pulley wheel and a 19-tooth lower pulley wheel to provide absolute optimisation of the rear derailleur. The upper and lower oversized aluminium pulley wheels come fitted with either standard or coated CeramicSpeed Bearings. For 8100 derailleurs, the cage uses the factory derailleur body washer. 9200 derailleurs will require the new included derailleur body washer. Since its introduction in 2015, the CeramicSpeed Oversized Pulley Wheel System has been through 13 unique derailleur compatibility developments. No other pulley system has the depth of use and trust as the CeramicSpeed OSPW, which counts both Men's and Women's Triathlon World Champions, World Tour professional road teams, XCO professional MTB Teams, and elite athletes worldwide as its users. This OSPW System has hand built CeramicSpeed Bearings installed in each pulley and it comes with a four-year manufacturer's warranty as standard. Featuring a 13-tooth upper pulley wheel and a 19-tooth lower pulley wheel to provide absolute optimisation of the rear derailleur. The upper and lower oversized aluminium pulley wheels come fitted with standard CeramicSpeed Bearings. Also included in the box is a 15ml dropper bottle of CeramicSpeed Bearing Oil. Technical DataThe overall power savings of the OSPW System for Shimano 9200 reach 30%-60%, or more in some cases, over a stock setup. The oversized pulley wheels have 3-5 times longer lifetime than the commonly used standard pulleys on the market. Maintenance of CeramicSpeed OSPW SystemsRegarding the maintenance of your OSPW System, it is important that you properly lubricate your bearings in order to ensure optimal performance and maximum longevity. Add oil by using the lubrication points on the back cage plate, so that oil can penetrate the bearing. Do this when you lubricate your chain, if you have washed your bike or after riding in wet or muddy conditions. Please note: While there are visual similarities in the 9100 Series OSPW and 9200 Series OSPW, the spring tension settings, rotation stop tower placement, and mounting pin depth are slightly repositioned and as such the systems are not cross-compatible. Features: Pulley Wheel Material: Aluminium Cage Material: Carbon Reinforced PA Bearings: Standard or CeramicSpeed bearings (multiple options in the selection menu) CeramicSpeed Grease/Oil: Pulley Oil (Standard) Use: Road Speed: 12-Speed Compatibility: Shimano Dura Ace 9200 / Ultegra 8100 Cassette Compatibility: Fits 11-30T and 11-34T Shimano 12 speed cassette Spring Tension Settings: 4 spring tension settings In The Box: A complete 13-tooth/19-tooth OSPW System, CeramicSpeed Bearing Oil in 15ml dropper bottleTechnologies: Integrated stop tower for simple installation and durability Lifetime warranty on system cage Trusted design by World Champions and top athletes around the world 13/19 pulley wheel sizes Standard or CeramicSpeed bearings (multiple options in the selection menu) Hand built CeramicSpeed bearings are installed in each pulleyBuy CeramicSpeed Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
Fulcrum Rapid Red 3 C24 Gravel WheelsetPacked with some of the best technologies available from Fulcrum, this gravel wheelset gives riders maximum performance when the tarmac comes to an end. It features two robust aluminium rims, making it perfect at handling all the abuse that's associated with long days in the saddle. Fulcrum has also put each wheel through a CNC-machining process that shaves off any unnecessary weight and maintains strength. The result is an exceptionally lightweight gravel wheelset that's also highly durable on every ride.The world of Gravel riding is tough to define with every cyclist likely to do things slightly differently from one another. It is with versatility in mind that Fulcrum have designed the Rapid Red 3. This is a completely new project designed for mixed terrain, constructed from a fully CNC machined piece of aluminium, which keeps them lightweight. These wheels are designed to be versatile, light and durable.Exploring B-roads along quiet secondary paved and unpaved roads, with some off-road sections thrown in for fun, on drop bar bikes and wider tyres is something that we know and love here at Fulcrum.The Rapid Reds, created from a completely new project, are perfectly at home on mixed terrain. Constructed completely with a machined CNC aluminium section, which significantly lowers their weight, their 24 mm internal rim width is ideal for current frames designed around larger wheels.The celebrated 2-Way Fit Ready system allows you to run the wheels tubeless or with the classic clincher and inner tube, ensuring the widest possible compatibility with most tyres available on the market. The choices don't stop there: they are available in 700C (starting width 30mm) or 650B. With the various options possible, from wheel size to tyre type, you can either make this wheel extremely fast on the road or unstoppable in the most demanding off-road situations. In fact, they are classified for ASTM 2 riding conditions.Features: Rim Material: Aluminium (6082, T6 Pre-Aging)Rim Details: R2-MillingProfile Height: LowRim Height: Front and rear: 24mmRim Width: 29mmInner Rim Width: 24mmTyre Width: From 30 to 46mm (28")Braking System: Disc brakeBraking Surface/Brake Options: AFS DISC BRAKE OPTIONTyre Type: 2-Way Fit Ready (for Clincher and Tubeless Ready)Tyre Size: 700cDiscipline: B-ROAD (Gravel)ASTM Category: 2Front Axle Compatibility: HH12-100Rear Axle Compatibility: HH12-142Front Wheel Spokes: 24Rear Wheel Spokes: 24Spokes Material: Stainless Steel, double-buttedSpokes Profile: Rounded, straight-pullNipples: AluminiumFront Hub: Aluminium, oversize flangeRear Hub: Aluminium, oversize flangeBearings: Adjustable Cup & Cones bearing systemOthers: Reflective stickers, Aluminium axleSingle or Pair: PairWeight Limit: 120kg (comprising cyclist, bike, equipment and luggage)Part Numbers: 106099289 FULC0146873 Black 700c SRAM XD XDR; 106099290 FULC0146877 Black 650c Shimano; 106099291 FULC0146871 Black 700c Shimano; 106099292 FULC0146879 Black 650c SRAM XD XDRWeight: 1740gBuy Fulcrum Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Selle Italia SLR C59 Road Bike SaddleThe SLR C59 Saddle is the result of Selle Italia's extensive product development and as it's infused with the lightweight and efficient properties of carbon fibre, it's their lightest saddle ever. Featuring no padding and weighing in at a mere 63g, it's aimed at experienced riders with thousands of miles under their belts. It also features Selle Italia's SuperFlow cutout, which provides unparalleled comfort by relieving pressure on the sensitive perineum area.Lightweight and EfficientWith its fascinating combination of lightweight construction and superior strength for optimum power transfer the SLR C59 sets a new benchmark for quality.Features: Shell: 100% Carbon Fibre Saddle Rails: Hi-Tech Carbon Fibre, 7x9mm Category: High PerformanceDimensions: 128x265mm Weight: 63gTechnologies:Carbon Wear®: Tensile carbon strength fibre and innovative Carbon Wear® technology mixes the best carbon properties with a special protective film that ensures maximum resistance.SuperFlow: The SuperFlow technology drastically reduces all physical limitations caused by prolonged pressure in the perineal area, especially for long distances. It allows an optimal and comfortable riding position.Buy Selle Italia Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
Selle Italia SLR Boost Tekno Superflow SaddleEngineered for the best balance of lightness, comfort and performance, this versatile saddle well-equipped for road, gravel and endurance cycling. Designed in collaboration with Dallara, it features a high-quality carbon design that includes a full carbon cover construction as well as hi-tech carbon rails. This combination ensures maximum stiffness and strength while also keeping its overall weight impressively low with the S3 option weighing only 90g and the L3 option weighing 100g. Multi-Discipline Saddle with Superflow TechnologyWhether you're clocking up the miles on an endurance ride, competing in a road racing event or exploring countryside back roads on your gravel bike, this saddle is developed for performance. Coming kitted out with Superflow technology, it uses its special central relief channel that runs down its middle section to relieve any pressure or fatigue from around your sit bones. As a result, you'll benefit from increased comfort and support, making it perfect for going the extra distance. Another highlight is this model's neutral shape that's ideal for riders with dynamic riding positions and those who like a more upright riding experience. Coming complete with a sleek, eye-catching finish, this is a great choice of upgrade for riding with speed, comfort and style.Features: Cover Material: Full Carbon Rails Material: Hi-Tech Carbon rail Use: Road, Gravel and Endurance Dimensions: S3 Option: 130x248mm; L3 Option: 145x248mm Central Cut Out: Superflow channel Shape: Neutral shape idmatch: S3 and L3 options available to select Weight: S3 Option: 90g; L3 Option: 100gTechnologies: Hi-Tech Carbon Rails: High modules carbon fibre weave, ø7x9mm. Superflow Channel: The SuperFlow technology drastically reduces all physical limitations caused by prolonged pressure in the perineal area. Neutral Shape: Neutral shape is recommended for individuals with both Anterior (Dynamic Rider) and Posterior (Static Rider) Pelvic Tilt.Manufacturer's Part Numbers: 041A922WCA001 Black L3 041A522WCA001 Black S3Buy Selle Italia Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
Designed for day tourers and confident SUP users, the Fohn Adventure 10'6" Stand Up Paddle Board Package is ideal for a variety of paddling adventures on both flat water and waves. Made with a double layer construction with an inner and outer tarpaulin alongside a reinforced double PVC coating on the side wraps, the paddle board itself boasts a rigid, stable and durable base for paddling. The EVA deckpad is also super grippy, while branded carry handles make light work out of carrying the board to and from your chosen water. For storage, an integrated bungee cord provides a secure space for gear overflow, water bottles, snacks and more. Additionally, the paddle board package includes every essential you will need to get the most out of your paddling experience. A removable fin ensures a smooth water glide, the paddle enhances speed and the two-way pump allows easy inflation. For safety, the coiled leash will stop the board drifting from you in the water and a handy repair kit will help prolong the board's life. Then when not in use, simply packaway in the backpack storage bag for easy transportation to and from your destination. How To Add/Remove Fin To correctly insert the included fin simply place the fin with the brass pin first into the centre of the bracket, making sure to push down. Then slide towards the back of the board and secure the front of the fin with the wingnut screw included . To remove, please reverse this action, it's best to make sure all removable parts are always cleaned off with fresh water post use to avoid any salt water damage. Care Instructions After being used in salt water all paddle boards, fins, leashes and paddles should be rinsed in fresh water and left to dry before being stored. This will ensure all parts avoid salt water damage and are kept at their best, always ready for your next adventure. When drying your paddle board, it is also best to do so deflated and in the shade where possible.
This lightweight aluminum wheelset is a no brainer for anybody looking to make an easy upgrade from OEM wheels. The Ksyrium S Disc can significantly boost any bike's performance and is an easy entry point to Mavic quality that doesn't take any shortcuts.The Ksyrium S Disc is 40g lighter than the former Ksyrium UST Disc while also being stronger and laterally stiffer. Stiffness is optimized using Fore technology. The upper bridge remains undrilled optimizing strength and rigidity and it doesn’t require the use of a rim tape which saves another 30g per wheel. The rim bed’s new shape makes it easier than ever to mount and remove tires and our UST Tubeless technology improves rolling resistance and grip while reducing the risk of punctures. Those rims are made in France in our aluminum rim factory.Our new Infinity hub platform optimizes stiffness and power transfer with highly controlled spoke tension while our Instant Drive 360 freewheel coupled with our automatic bearing preload adjustment (QRM Auto) delivers fast engagement and durability. The Ksyrium S Disc doesn’t just ride fast it looks fast too. Matte painted hubs invisible rim welding and deep black spokes give this wheelset a premium look that stands out from the crowd. Engineered specifically for disc brakes it's compatible with a 12x100 axle up front and 12x142 rear and can convert to Quick Release with supplied adapters. It's available for Shimano and Sram XD-Road cassettes and can convert to Campagnolo with an optional driver body.For Center Lock disc rotors only. Key benefits Lightweight and durable for everyday performance Rim weighs only 430g No rim tape is needed saving 60g over a traditional wheelset Flat lightweight spokes and ID360 freewheel technology Laterally stiff and vertically compliant for a more dynamic ride Fore technology keeps the rim upper bridge solid to make the 19mm wide rim stiffer New Infinity hub plaform: stiff axle durable bearings and new hub design Improved UST Road delivers more speed comfort and control in an easy to use tubeless system No tubes means less friction better efficiency and grip a reduced risk of punctures New rim bed shape makes it easier to mount and change tires Fore drilling technology doesn't require the use of rim tape Rims Material: Maxtal Tire: UST Tubeless and tubetype Disc brake specific profile Internal width: 19 mm SUP welding technology Fore tapeless tubeless technology UST tubeless technology ETRTO size: 622x19TC Height: 22 mm Spokes Count: 24 front and rear Nipples: Fore integrated aluminum Material: steel Shape: straight pull flat double butted Lacing: front and rear crossed 2 contactless Delivered with User guide UST valve and accessories Front QR adapters Multifonction adjustment wrench (delivered with rear wheel) Rear QR adapters for Instant Drive 360 Hubs Axle material: aluminum Front and rear bodies: aluminum Instant Drive 360 freewheel technology Rear: Quick Release 12x142 and 12x135 compatible QRM Auto bearing preload technology Front: Quick release and 12x100 through axle compatible Infinity hubs Intended use Recommended tire sizes: 25 to 32 mm ASTM CATEGORY 2 : road and offroad with jumps less than 15cm For a longer longevity of the wheel Mavic recommends that the total weight supported by the wheels doesn't exceed 120kg bike included Max Pressure: see indication on wheel and tire If they differ use the lowest of the 2 Minimum and maximum allowed tyre width: see indication on wheel Maximum tyre pressure: 675bar/97PSI with a 23mm tyre - 38bar/55PSI with a 62mm tyre Compatibility Freewheel: Shimano/Sram convertible to Campagnolo ED11 N3W and XD-R with optional driver bodies Rear axle: 12mm thru axle convertible to Quick Release with included adapters Front axle: 12x100 thru axle easily convertible to quick release with included adapters Not compatible with 15mm through axles Versions Disc standard: Center Lock® only Freewheel: Shimano/Sram or XD-Road Compatible Adapters and freewheel bodies 12 to 9mm front adapter for quick release (V2680301) 12mm front hub cap (V2680501 - Delivered with the wheel) 12x142 rear axle adapters (V2510701 - Delivered with the wheel) 12 to 9mm rear adapter for quick release (V2510801 - Delivered with the wheel) ID360 Shimano / Sram Light freewheel body (V3850101) ID360 Campagnolo freewheel body (V3440101) ID360 XD-R freewheel body (V2580101) ID360 Shimano / Sram freewheel body (V3430101) ID360 N3W freewheel body (V4270101) Information on specified weight The weight of the wheels is announced at +/-5% in XD/XD-R and Center Lock version without quick release nor valve nor rim tape
Description will appear here shortly...
Designed for a feeling of power in the water, our Powerskin Carbon Core FX open-back suit for women takes compression to a new level. This racing swimsuit is cut from Carbon Cage fabric that works horizontally and vertically for long-lasting muscle compression and a locked-in feel. At the back twin-taping along the legs has a lifting effect on the body, helping it to stay high and horizontal in the water. The internal taping and lining intensify support and core stability. To add flexibility, we designed the lining with a slim opening under the chest. Care Instructions Rinse immediately after use, in non-chlorinated water. Do not leave the wet swimsuit in a bag or other container for a long time. Do not expose the wet swimsuit in a bag or other container to direct sunlight. Wash with detergents suitable for delicate clothes, Air-dry away from heat sources. Hand wash only. Do not dry clean. Do not bleach. Do not machine dry. Do not iron.
How do you define success? Whether you are fighting for a Kona slot, spending countless hours on the indoor trainer, or striving for a personal best; one thing we know, success takes time. With an industry-leading 800 hours battery life, +/-1% accuracy and backed by 4iiii’s legendary 3-year warranty the Precision 3 Powermeter will be your trusted training tool for years to come. Features: Industry leading battery with 800 hours of battery life Product status indication LED light – for wake up (green), zero offset (blue) and low battery (red) Patented 3D Strain Gauge technology to deliver +/- 1% accuracy Ultra slim design to fit almost every frame Legendary 3 Year Warranty Waterproof, durable, designed and tested in the Canadian Rockies for the harshest conditions Lightest power meter on the market at only 9g Backwards compatible with current Precision Drive Side Powermeter Active temperate compensation Over the air feature and firmware upgradability Coin cell powered, CR2032 Compatible with 3rd party training apps such as Zwift, TrainerRoad, SYSTM, and more Specifications: Accuracy: +/- 1% Battery Type: CR2032 Coin Cell Battery Life: 800 Hours Waterproof Rating: Ipx7 Cadence Range: 30-170 RPM Power Range: 0-4000 Watts Length: 63.79mm Width: 26.42mm Height: 5.5mm Weight: 9g Operating Temperature: 0 to 50°C Storage Temperature: -40 to 60°C Communication Protocols: ANT+, Bluetooth®
SRAM Red GXP 11 Speed Road Double ChainsetThe SRAM Red GXP Road Crankset features a hollow design all the way to the spider. Its hidden bolt pattern makes use of its carbon fibre construction to further enhance stiffness and shed unnecessary weight. It also benefits from X-GlideR™ chainrings, which provide smooth, even performance and are suitable for use with SRAM's Yaw™ front derailleur.This version of the SRAM Red crankset uses their GXP® bottom bracket system, which makes it compatible with most Road frame’s bottom bracket shell types. It is also equipped with a standard Road 53/39T chainring setup, making it ideal for time trial and racing use, where you need ultimate acceleration to be first over the line.Already a legend in its time, the SRAM Red chainset now features refreshed graphics to complement the new SRAM Red eTap componentry.Features:Arm Material: CarbonBottom Bracket Included: NoChainrings Included: YesChainring Bolt Circle Diameter (BCD): 110 BCD, 130 BCDChainring Material: Machined AlloyChainring Size: 46/36T, 50/34T, 52/36T, 53/36T Crankarm Length: 165mm, 170mm, 172.5mm, 175mmCompatibility: SRAM Red® & SRAM Force Yaw™ front derailleur, SRAM Red® 22 & PC1170 chainsFinish: CarbonTooth count: 53/39TCompatibility: SRAM Road 11-speed compatibleDesigned for GXP® bottom bracketsSRAM's stiffest crank everHidden bolt pattern leverages the characteristics of Carbon Fibre while presenting a sleek appearanceStiffer X-GlideR™ chainrings feature thicker construction and advanced shift timing pins and ramps, which are optimised for shifting with the Yaw™ front derailleurSpeed: 11 SpeedWeight: 609g (GXP 172.5mm 53x39T)Part No: FC-RED-C2Technologies:Exogram™: The new Hollow Carbon Construction starts in the crank arm and extends into the cranks' spider. It maximises the stiffness to weight ratio.X-GlideR Chainrings: The chainrings are designed for an optimised shifting performance with the Yaw front derailleur. The stiffer rings (5mm 7075-T6 aluminium CNC-machined) feature upshift rivets with an advanced design adopted from SRAM XX. CNC machining allows for precision control of each tooth shape, ramp, and nearly every shifting feature of the chainring. The chainrings, chain, and front derailleur are designed as a single integrated system for optimised performance.Buy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
SRAM Red GXP Compact 2x11 Speed Road ChainsetThe SRAM Red Compact chainset features a completely hollow construction all the way to the spider. Its hidden bolt pattern makes better use of carbon fibre to further improve stiffness and shed weight. It's also equipped with X-GlideR chainrings, which provide seamless, flawless performance and compatibility with SRAM's Yaw front derailleur.This version of the SRAM Red chainset uses their GXP bottom bracket system, which makes it compatible with most Road frame's bottom bracket shell types. It is also equipped with a compact Road 50/34T chainring setup, making it ideal for training on, club rides and sportives.Already a legend in its time, the SRAM Red chainset now features refreshed graphics to complement the new SRAM Red eTap componentry.Features: Arm Material: Carbon Chainring Material: Machined Alloy Compatibility: SRAM Red & SRAM Force Yaw front derailleur, SRAM Red 22 & PC1170 chains Finish: Carbon BCD: 110mm Tooth count: 50/34T SRAM Road 11-speed compatible Designed for GXP bottom brackets Exogram technology uses a large, hollow cross section all the way to the spider, minimising weight while maximising stiffness SRAM's stiffest crank ever Hidden bolt pattern leverages the characteristics of Carbon Fibre while presenting a sleek appearance Stiffer X-GlideR chainrings feature thicker construction and advanced shift timing pins and ramps, which are optimised for shifting with the Yaw front derailleur Weight: 609g (GXP 172.5mm 53x39T, BB not included)Technologies: Exogram: The new Hollow Carbon Construction starts in the crank arm and extends into the cranks' spider. It maximises the stiffness to weight ratio. X-GlideR Chainrings: The chainrings are designed for an optimised shifting performance with the Yaw front derailleur. The stiffer rings (5mm 7075-T6 aluminium CNC-machined) feature upshift rivets with an advanced design adopted from SRAM XX. CNC machining allows for precision control of each tooth shape, ramp, and nearly every shifting feature of the chainring. The chainrings, chain, and front derailleur are designed as a single integrated system for optimised performance.Buy SRAM Components from Chain Reaction Cycles, the World's Largest Online Bike Store.